先化简分式a2-9a2+6a+9+a-3a2+3a-a-a2a-1,然后在0,1

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问题:

先化简分式
a2-9
a2+6a+9
+
a-3
a2+3a
-
a-a2
a-1
,然后在0,1,2,3中选一个你认为合适的a值,代入求值.
考点:分式的加减乘除混合运算及分式的化简
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下列各组划线的词语意思相同的一项是(2分)

A.问:“何战?” / 是谓之“文”也

B.更若役,复若赋,何如 / 若无兴德之言,责攸之、祎、允等之慢,以彰其咎

C.去怀乡,忧谗畏讥 / 夫大,难测也

D.求其能千里也 / 能辨我是雄雌

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强化环境管理的核心是( )。

A.环境质量标准

B.地方环境标准

C.环境标准

D.环境保护部标准

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有关对气焊的缺点的叙述中,说法正确的是( )。

A.设备比较复杂,比焊条电弧焊设备价格高
B.生产效率较低,焊接后工作变形和热影响区较大,较难实现自动化
C.焊接飞溅较大,防风能力差
D.对铸铁及有色金属的焊接适应性较差

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Everyone gets angry sometimes, but being angry doesn’t really solve much. Your goal is to calm yourself down. This is (1) for some people. Instead of calming down, they might get more and more upset (2) they explode like a volcano. Some people might say they have trouble (3) their temper. Sometimes angry feelings can be hard to (4) . So what do you do if your temper is like a volcano

Well, the good news is (5) people don’t keep making the same mistakes over and over again. You can train your temper. Here are steps you can (6) at any time.

Get a lot of (7) activity. Exercise can be good because it is a way of (8) energy and stress. You can dance around your room (9) your favorite music, too.

Talk to your mom or dad. If you’re having trouble with your temper, tell your parents you’re trying to do a (10) job of controlling yourself. Let them know you are going to ask for their help.

Put (11) into words. Get into the habit of saying what you are feeling and why. (12) using words might help you manage your p feelings and behaviors.

Take a break from the (13) . If you are in an argument with someone, go to another part of your house. You can just say, "I want to be (14) for a while so I can calm down. "

Go into a (15) . If you fed angry and think you need a timeout to calm down, don’t (16) your parents to tell you to take a timeout for yourself. Let your family know that when you’re taking a timeout, they need to (17) your space and leave you alone. While you are sitting in your chair, try to take deep (18) .

Learn to shift. The idea is to shift from a really angry mood to a better mood. After you (19) the angry feelings out, you have to start thinking about other things, You can say, "I (20) my temper, but I’m going to get myself under control now.

17()

A.respect 

B.give 

C.offer 

D.make

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塔邦文化中的“塔邦”是一种植物的名字。

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